Cases - RichMail

Cases - RichMail

I was setting up Cases App on my personal environment and I could not complete the POP3 Test Account.
I have tried with gmail and yahoo. I had a look
Is it working or is any limitation on the personal environment on the Cloud? It gives an error that cannot communicate because of a common algorithm.
Thanks in advance.

Thanks for the answer.
I was able so send emails but when retrieving the Inbox e-mail it gives an error.
I have builded an app that receives and send emails.
Is anyone using the RichMail action to get the emails?
I have tried to debug the extension with Visual Studio looking at this post . I made all the steps but could not find the modules to debug on the VS, I probably made some mistake in the way, I will give it a try today again.